S. Yuvaraj

National Institute of Oceanography

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R. Abarna

Central University of Tamil Nadu

V. Sanil Kumar

National Institute of Oceanography

K. Balasubramani

Central University of Tamil Nadu

K.K. Sivakrishnan

Council of Scientific and Industrial Research

Kumar Arun Prasad

Central University of Tamil Nadu

P. R. Shanas

National Institute of Oceanography

Sulochana Shekhar

Central University of Tamil Nadu

Sourav Mandal

National Institute of Oceanography

Sekar Leo George

Central University of Tamil Nadu

L. Gnanappazham

Indian Institute of Space Science and Technology

Cooperative Institutions

Central University of Tamil Nadu

National Institute of Oceanography

Council of Scientific and Industrial Research

Indian Institute of Space Science and Technology

Banaras Hindu University

Indian Institute of Technology BHU

Academy of Scientific and Innovative Research

Indian Institute of Technology Madras

Galgotias University

Colorado State University

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Impact of local and remote winds on the surface waves in the coastal waters of eastern Arabian Sea

Ocean Engineering (2024)

P. R. Shanas V. Sanil Kumar K.K. Sivakrishnan Sourav Mandal S. Yuvaraj

10.1016/j.oceaneng.2024.116714

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Estimating built-up risk from multi-natural hazards: A case study of Northern coastal plains of Tamil Nadu

Natural Hazards Research (2023)

R. Abarna Sekar Leo George K. Balasubramani S. Yuvaraj Sulochana Shekhar

The Tamil Nadu state of India possesses a vast coastline of 1076 km and is highly vulnerable to many climate change-induced natural hazards. It is essential to evaluate the elements at risk to the coastal hazards and map their spatial variations for the densely populated Tamil Nadu coast. Most of the disaster risk studies had concentrated much on delineating hazard-prone regions based on the overall analysis of multiple parameters. For the first time, this study estimated the risk for built-up areas at the micro-administrative level for the northern coastal plains of Tamil Nadu. The built-up areas in the coastal stretch (within 40 m from MSL) were delineated and categorised based on their density and structure. Also, we conducted a focus group survey from the deprived communities in the study area. Our result shows that out of 1848 sq. km. built-up area in the study region, 127 sq. km. fall under the very high category of the impacts of six significant natural hazards: cyclones, storm surges, Tsunami, floods, earthquakes, and shoreline erosion. Our results show that the built-up areas in Chennai, Pondicherry, Karaikal, and towns/villages of Cuddalore and Nagapattinam are at very high to high multi-hazard risks. Since the present study focuses on the built-up damage at the micro-level, the results can be upscaled and used for local and state-level planning strategies.

Tamil

Natural hazard

Coastal erosion

Coastal hazards

Storm Surge

10.1016/j.nhres.2023.01.001

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Citations (5)